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Finding the Fourth Proportional to 25.48, 35.10 and 23.28

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Solution

The fourth proportional to 25.48, 35.10 and 23.28 is: 32.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.48 : 35.10 = 23.28 : x
  2. Step 2: Convert to fraction form
    25.48/35.10 = 23.28/x
  3. Step 3: Cross multiply
    25.48x = 35.10 × 23.28
  4. Step 4: Simplify right side
    25.48x = 817.13
  5. Step 5: Solve for x
    x = 817.13/25.48
  6. Step 6: Final answer
    x = 32.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.